Kelly D. Brownell, PhD, is an internationally known expert on eating disorders, obesity, and body weight regulation. He is a professor of psychology at Yale University, where he also serves as professor of epidemiology and public health and as director of the Yale Center for Eating and Weight Disorders. From 1995-1999, he served as director of clinical training. From 1994-2000, he served as master of Silliman College at Yale. Brownell has served as president of several national organizations, including the Society of Behavioral Medicine, Association for the Advancement of Behavior Therapy, and the Division of Health Psychology of the American Psychological Association. He has received numerous awards and honors for his work, including the James McKeen Cattell Award from the New York Academy of Sciences, the award for Outstanding Contribution to Health Psychology from the American Psychological Association, and Distinguished Alumni Award from Purdue University. Brownell has published 13 books and more than 200 scientific articles and chapters. One book received the Choice Award for Outstanding Academic Book from the American Library Association, and his paper on "Understanding and Preventing Relapse" published in the American Psychologist was listed as one of the most frequently cited papers in psychology.